U-Probe, 16ch, 15µm elect dia, 150um electrode spacing, 98mm total length(28mm; 640µm dia reinforcement tube); 210µm probe dia; 2x CON/8o50m connector interface; 770µm tip to 1st site; fiber optic between sites 1/2. On the fiber optic there is not ferrule but 20cm long silicone tube, inside it polyimide tube. Tip is 15 degrees.